Heck for warring-machines



l UNITED'` STATES PATENT OFFICE.

THOMAS LAMB, HOF PHILADELPHIA, PENNSYLVANIA.

HECK FOR WARPVING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 239,806, dated April 5, 1881.

- Application tiled September 18, 1880. (No model.)

To all whom it may concern:

Be it known that I, THOMAS LAMB, a citizen ofthe United States, residing in the city and county ofPhiladelphia, and State of Pennsylvania, have invented a new and useful Improvement in Heeks for Varping-Machines, which improvement is fully set forth in the following speeitcation and accompanying drawings, in` which- Figure l is a side elevation of the heck embodying my invention. Fig. 2 is a longitudinal ver Vcal section in line x, Fig. 4. Fig.-3 is a horizontal section in liney y, Fig. 1. Fig. 4 is a transverse vertical section in line z z, Fig. 2. Fig. 5 is a vertical section of a portion in line c a, Fig. 2. Fig. (iis a similar section in line a a', Fig. 2.

Similar letters of reference indicate corresponding parts in the several figures.

As is well known, hecks consist of two series of eyes through which the yarns pass from the warping-machine to the beam on which they are wound, said series being alternately operated, so that the yarns of the Warps are alter,- nately raised, lowered, and separated.

This invention relates to heoks for warpingmachines; and it consists in the construction and combination of parts hereinafter setforth.

Referring to the drawings, A represents the base ofthe heck, from the ends of which rise upright-S B B, each having at top a socket or cup, G, by which is supported a rail, D, eX- tending horizontally from one to the other, and having numerous vertical perforations, into each of whichiis itted the shank of one of the needles or eyes E of the heck. The needles or eyes Eare in two series, each connected to a rising and falling bar, F, the two bars eX- tending parallel with the rail D, below the same, and when in their lower position resting on the base.

Depending from each bar F is an arm, G, projecting into a chamber in the base A, and each is provided with a diagonal slot, as shown by the dotted lines in Fig. l.

Within the chamber b, adjacent to the upper ends of the diagonal slot c in the arms G, is secured an upright plate, H, having an anguiar opening, through which is passed andguided a longitudinally extending rod, J,

which is likewise supported at other lpoints of the base A, as well as in the endet' ul'iright B. The portion d ofthe rod that is passed through the guides H is angular, and the portion at the inner termination ofsaid angular portion is cylindrical and reduced to form a neck, d', the object of which is, that when the angular portion d ofthe rod is in the guide-plate H said rod cannot be rotated, hilt when the neck d is within said plate the rod may be rotated. Projecting from the rod at or about'a right angle thereto is a stud, screw, or pin, K, which is secured to the rod near the neck d! thereof, and so disposed that when it is in a horizontal position it may strike the edge ofthe diagonal slot 'c of either ofthe arms G.

In order to limit the rotation of the rod J,

. and consequently of the pin K, I secure to opposite sides of the upper portion of the plate H, or other proper portion of the base A, two stops, e e, against which the stops strike when the rod J is rotated,preventing more than a half-turn ofthe same. When the pin Kst-rikes either stop c, the-former is in horizontal posi, t-ion to be advanced against the diagonal c of one of the arms G ou the same side as the pin for lifting said arm, and consequently the relative bar F, as will be hereinafter stated.

The operation is as follows: The rod J, being in position, Fig. l, has its neck d in the opening of the plate H, and may be rotated by the button or head J', in order to place the pin K in position. The rod is then drawn out, and the pin K, bearing against the side of the slot c in one ofthe arms G, and moving with the rod, raises said arm, and consequently the bar F, with the attached series of needles or eyes'E. As the angular portion d of the rod is now in the angular opening of the plate H, the rod is prevented from turning, and the series of needles or eyes, as elevated, are sustained without liability of accidental lowering. When the other series ofneedles or eyes is to be raised, the rod J is pushed in to its fullest extent and the raised bar, no longer controlled by the pin K, lowers or returns to its first position. As the neck d is again in the opening ofthe plate H,the rodJ may be rotated,and thus bring the pin K into the slot in the other arm G, which, when the rod is drawn out, as before, is raised by the pin, and the respective series of needles or eyes is elevated. This alternate IOO action of the two series of needles or eyes may be continued as long as desired, it being noticed that by the provisionot' the rotating rod J and its pin K, and proper rotation of the saine, a single rod is adapted to operate two series of needles or eyes.

It will be observed that the railD is of considerable length, and strength is required to prevent it from sagging. This is accomplished by making it of tubular form, this 'also decreasing the Weight of the rail.

The inner sides of the two rails F are toothed or corrugated, as at f, the teeth of one rail entering the spaces of the teeth of the other rail. As the Shanks ofthe needles or eyes E are connected tothe middle of the teeth or corrugatio1.1sf,they are centered on the two bars, or extendin the same rightline, as shown in Fig. 3, and the bars are guided one on the other in starting from and returning to their lirst positions.

lf desired, the pin K may carry a roller for easing the operation of running in the slot in the arm G. t

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The two bars F, each provided with a series of needles or eyes, E, and having an arm,

Gr, Withan oblique slot therein or exten-sion thereof, in combination with a single liftingrod, J, having a laterally-projecting pin, K, adapted to engage with the slotin, or lateral extension of, either ofthe arms Gr, substantially as set forth.

2. The two needle or eye carrying bars F and arms G, provided with oblique slot c, in combination with the rod J, having an angular portion, d, and neck d', the'pin K, and the guide-plate H, substantially as and for the purpose set forth.

3. The needle or eye carrying bars F, in combination with theneedles or eyes, the tubular perforated guide-rail D, and supports for said guide-rail, and devices for vertically raisingand lowering said bars F, substantially as set forth.

4. The needle or eye carrying bars F and guiding-rail, in combination With the needles, the uprights B, having cups C, and devices for raising and lowering said needle-bars, substantially as set forth.

THos. LAMB. Witnesses:

J oHN A. WIEDERSHEIM, A. P. GRANT. 

